1013227536421 has 4 divisors (see below), whose sum is σ = 1014219924844. Its totient is φ = 1012235148000.

The previous prime is 1013227536337. The next prime is 1013227536449. The reversal of 1013227536421 is 1246357223101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 509817420225 + 503410116196 = 714015^2 + 709514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013227536421 - 2²³ = 1013219147813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013227536521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496192680 + ... + 496194721.

It is an arithmetic number, because the mean of its divisors is an integer number (253554981211).

Almost surely, 2^{1013227536421} is an apocalyptic number.

It is an amenable number.

1013227536421 is a deficient number, since it is larger than the sum of its proper divisors (992388423).

1013227536421 is an equidigital number, since it uses as much as digits as its factorization.

1013227536421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992388422.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 1013227536421 in words is "one trillion, thirteen billion, two hundred twenty-seven million, five hundred thirty-six thousand, four hundred twenty-one".